> -----Original Message----- > From: R Lists06 [mailto:[EMAIL PROTECTED] > Sent: maandag 16 oktober 2006 16:54 > To: users@spamassassin.apache.org > Subject: RE: Any suggestions for 'postmaster' spams? > > > Does anyone have suggestions on how to handle this? They're all > semi-standard 'delivery failure' or 'content blocked' notices, so I > created filtering rules based on the subjectline to put them all into > a folder. I don't think they should be marked as spam though because > they're not.
You could use SRS to sign outgoing envelope-from addresses (like I do). And then run SRS checks on the return. Guaranteed to stop ALL fake DSN messages. No false positives, ever. If you're running sendmail, have a look at: http://www.srs-socketmap.info/ Signing envelope-from addresses, however you wind up doing it, is really the best protection. - Mark
